A stone is dropped from a height of 20m above water. The graph shows the variation with time of the velocity of the stone. [Figure 5.1] Which statement describes the approximate position of the stone four seconds after it is dropped?
✓ Correct Answer
The correct answer is B: It is at a distance of 10 m below the surface of the water.
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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